CN110629083A - Marine 5083 aluminum alloy plate and processing technology thereof - Google Patents

Marine 5083 aluminum alloy plate and processing technology thereof Download PDF

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Publication number
CN110629083A
CN110629083A CN201911073911.6A CN201911073911A CN110629083A CN 110629083 A CN110629083 A CN 110629083A CN 201911073911 A CN201911073911 A CN 201911073911A CN 110629083 A CN110629083 A CN 110629083A
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aluminum alloy
percent
equal
less
hot
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CN201911073911.6A
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CN110629083B (en
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宋喜波
李克振
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ZHENGZHOU MINGTAI ENGINEERING Co Ltd
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ZHENGZHOU MINGTAI ENGINEERING Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making alloys
    • C22C1/02Making alloys by melting
    • C22C1/026Alloys based on aluminium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C21/00Alloys based on aluminium
    • C22C21/06Alloys based on aluminium with magnesium as the next major constituent
    • C22C21/08Alloys based on aluminium with magnesium as the next major constituent with silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/04Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
    • C22F1/047Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with magnesium as the next major constituent

Abstract

The invention relates to a 5083 aluminum alloy plate for a ship and a processing technology thereof, wherein the 5083 aluminum alloy plate comprises the following components in percentage by weight: less than or equal to 0.2 percent of Si, less than or equal to 0.35 percent of Fe, less than or equal to 0.05 percent of Cu, 0.60 to 0.80 percent of Mn, 4.4 to 4.7 percent of Mg, 0.1 to 0.18 percent of Cr, less than or equal to 0.1 percent of Zn, 0.015 to 0.025 percent of Ti, Al and other inevitable elements, wherein the total content of the other inevitable elements is less than or equal to 0.05 percent and less than or equal to 0.15 percent; smelting and casting the above element ingredients in a smelting furnace to form an aluminum alloy ingot, then hot rolling at the temperature of more than or equal to 300 ℃, annealing at the temperature of 320-400 ℃, and then cold rolling, stabilizing treatment and straightening plate shape to obtain an aluminum alloy plate meeting the requirements; the aluminum alloy plate prepared by the process effectively reduces production links, lowers the production input cost of enterprises and lowers energy consumption.

Description

Marine 5083 aluminum alloy plate and processing technology thereof
Technical Field
The invention belongs to the technical field of aluminum alloy plate manufacturing, and particularly relates to a 5083 aluminum alloy plate for a ship and a processing technology thereof.
Background
Due to the requirements of working environment, the plate used for manufacturing ships has high requirements on tensile strength, yield strength, corrosion resistance and the like, and in order to meet the mechanical property requirements, most of the plates used for manufacturing ships at present adopt 5-series aluminum alloy. For example, the chinese patent publication No. CN104475477A discloses a processing technology of a 5083 aluminum alloy plate for a ship, and the processing technology disclosed by the invention describes: sequentially carrying out face milling, heating, hot rough rolling, hot finish rolling, pre-annealing, first cold rolling, intermediate annealing, second cooling, shearing straightening, stabilizing heat treatment and saw cutting sizing on a 5083 aluminum alloy cast ingot to obtain a 5083 aluminum alloy plate for the ship; according to the processing technology of the 5083 aluminum alloy plate for the ship, the aluminum alloy plate with excellent mechanical property and corrosion resistance can be prepared only by carrying out subsequent treatment after multiple annealing and cold rolling, so that the input cost and energy consumption of production are increased undoubtedly.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a 5083 aluminum alloy plate for a ship and a processing process thereof, wherein the production process links are reduced, and the production cost is reduced on the premise of effectively meeting the strength performance, the spalling corrosion resistance and the intercrystalline corrosion resistance of the aluminum alloy plate.
The technical scheme of the invention is as follows:
a5083 aluminum alloy plate for ships comprises the following components in percentage by weight: less than or equal to 0.2 percent of Si, less than or equal to 0.35 percent of Fe, less than or equal to 0.05 percent of Cu, 0.60 to 0.80 percent of Mn, 4.4 to 4.7 percent of Mg, 0.1 to 0.18 percent of Cr, less than or equal to 0.1 percent of Zn, 0.015 to 0.025 percent of Ti, Al and other inevitable elements, wherein the total content of the other inevitable elements is less than or equal to 0.05 percent and less than or equal to 0.15 percent.
Preferably, the marine 5083 aluminum alloy plate comprises the following components in percentage by weight: si is less than or equal to 0.2 percent, Fe is less than or equal to 0.35 percent, Cu is less than or equal to 0.05 percent, Mn is 0.60 percent, Mg is 4.5 percent, Cr is 0.15 percent, Zn is less than or equal to 0.1 percent, Ti is 0.02 percent, Al and other inevitable elements, the other inevitable single elements are less than or equal to 0.05 percent, and the total is less than or equal to 0.15 percent.
Further, the production process of the 5083 aluminum alloy plate for the ship comprises the following preparation steps:
s1, weighing the above element ingredients according to the weight percentage, putting the elements into a smelting furnace, smelting at the temperature of 700 and 750 ℃, refining, degassing, slagging off and filtering, and then casting aluminum liquid into aluminum alloy ingots;
s2, uniformly carrying out thermalization treatment on the aluminum alloy ingot obtained in the step S1, cutting off the head and the tail, and milling the surface to obtain a pretreated alloy ingot;
s3, preheating the pretreated alloy ingot obtained in the step S2, and then hot-rolling the alloy ingot to a hot-rolled plate with a certain thickness, wherein the final hot-rolling temperature is more than or equal to 300 ℃;
s4, annealing the hot rolled plate obtained by the hot rolling in the step S3 at the temperature of 320-400 ℃, and preserving heat for 3-5 hours;
s5, cold rolling the plate processed in the step S4 to an aluminum alloy plate with the finished thickness;
s6, preserving the heat of the aluminum alloy sheet obtained in the step S5 at the temperature of 120-150 ℃ for 3-5h for stabilization treatment;
and S7, transversely shearing and straightening the aluminum alloy sheet after the stabilizing treatment to obtain the aluminum alloy sheet.
Preferably, in step S3, the annealing temperature of the hot-rolled sheet is 350 ℃.
Preferably, in step S6, the aluminum alloy sheet is stabilized by holding at 130 ℃ for 4 h.
Preferably, in the step S3, the hot-rolled sheet after hot-rolling forming has a reduction ratio of 14% to 17% to an aluminum alloy sheet.
Compared with the prior art, the invention has the beneficial effects that:
compared with the existing 5083 aluminum alloy plate for the ship, the production process of a cold rolling procedure is reduced, the production links of 5083 aluminum alloy for the ship are effectively reduced, and the 5083 aluminum alloy plate for the ship meeting the requirements can be directly prepared by carrying out hot rolling, annealing, cold rolling and stabilizing treatment on the aluminum alloy ingot cast into an ingot; in addition, the invention controls the stabilizing temperature between 120 ℃ and 150 ℃, and manufactures the aluminum alloy plate meeting the requirements by utilizing lower stabilizing temperature; the 5083 aluminum alloy plate for the ship provided by the invention is work-hardened and stabilized in an 1/4 hard state, and the 5083 aluminum alloy plate for the ship provided by the invention has good spalling corrosion resistance and intergranular corrosion resistance.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A5083 aluminum alloy plate for ships comprises the following components in percentage by weight: si is less than or equal to 0.2 percent, Fe is less than or equal to 0.35 percent, Cu is less than or equal to 0.05 percent, Mn is 0.06 percent, Mg is 4.7 percent, Cr is 0.1 percent, Zn is less than or equal to 0.1 percent, Ti is 0.025 percent, AL and other inevitable elements, the other inevitable single elements are less than or equal to 0.05 percent, and the total is less than or equal to 0.15 percent.
Further, the production process of the 5083 aluminum alloy plate for the ship comprises the following preparation steps:
s1, weighing the above element ingredients according to the weight percentage, putting the elements into a smelting furnace, smelting at the temperature of 700 and 750 ℃, refining, degassing, slagging off and filtering, and then casting aluminum liquid into aluminum alloy ingots;
s2, uniformly carrying out thermalization treatment on the aluminum alloy ingot obtained in the step S1, cutting off the head and the tail, and milling the surface to obtain a pretreated alloy ingot;
s3, preheating the pretreated alloy ingot obtained in the step S2, and hot-rolling a hot-rolled plate with a certain thickness, wherein the final hot-rolling temperature is more than or equal to 300 ℃;
s4, annealing the hot rolled plate obtained by the hot rolling in the step S3 at the temperature of 320-400 ℃, and preserving heat for 5 hours;
s5, cold rolling the plate processed in the step S4 to an aluminum alloy plate with the finished thickness;
s6, preserving the heat of the aluminum alloy sheet obtained in the step S5 at the temperature of 120-150 ℃ for 5 hours for stabilization treatment;
and S7, transversely shearing and straightening the aluminum alloy sheet after the stabilizing treatment to obtain the aluminum alloy plate.
In the step S3, the processing rate of the hot-rolled sheet subjected to hot rolling forming to an aluminum alloy sheet is 14% to 17%.
Example 2
A5083 aluminum alloy plate for ships comprises the following components in percentage by weight: 0.1% of Si, less than or equal to 0.35% of Fe, less than or equal to 0.05% of Cu, 0.70% of Mn, 4.5% of Mg, 0.15% of Cr, less than or equal to 0.1% of Zn, 0.02% of Ti, Al and other unavoidable elements, less than or equal to 0.05% of the other unavoidable individual elements, and less than or equal to 0.15% in total.
Further, the production process of the 5083 aluminum alloy plate for the ship comprises the following preparation steps:
s1, weighing the above element ingredients according to the weight percentage, putting the elements into a smelting furnace, smelting at the temperature of 700 and 750 ℃, refining, degassing, slagging off and filtering, and then casting aluminum liquid into aluminum alloy ingots;
s2, uniformly carrying out thermalization treatment on the aluminum alloy ingot obtained in the step S1, cutting off the head and the tail, and milling the surface to obtain a pretreated alloy ingot;
s3, preheating the pretreated alloy ingot obtained in the step S2, and then hot rolling the alloy ingot to obtain a finished hot rolled plate with a certain thickness, wherein the final hot rolling temperature is more than or equal to 300 ℃;
s4, annealing the hot rolled plate obtained by the hot rolling in the step S3 at the temperature of 360 ℃, and preserving heat for 4 hours;
s5, cold rolling the plate processed in the step S4 to an aluminum alloy plate with the finished thickness;
s6, preserving heat of the aluminum alloy sheet obtained in the step S5 at the temperature of 140 ℃ for 4 hours to perform stabilization treatment;
and S7, transversely shearing and straightening the aluminum alloy sheet after the stabilizing treatment to obtain the aluminum alloy plate.
In the step S3, the processing rate of the hot-rolled sheet subjected to hot rolling forming to an aluminum alloy sheet is 14% to 17%.
Example 3
A5083 aluminum alloy plate for ships comprises the following components in percentage by weight: 0.1% of Si, less than or equal to 0.35% of Fe, less than or equal to 0.05% of Cu, 0.80% of Mn, 4.4% of Mg, 0.18% of Cr, less than or equal to 0.1% of Zn, 0.015% of Ti, Al and other unavoidable elements, less than or equal to 0.05% of the other unavoidable individual elements, and less than or equal to 0.15% in total.
Further, the production process of the 5083 aluminum alloy plate for the ship comprises the following preparation steps:
s1, weighing the above element ingredients according to the weight percentage, putting the elements into a smelting furnace, smelting at the temperature of 700 and 750 ℃, refining, degassing, slagging off and filtering, and then casting aluminum liquid into aluminum alloy ingots;
s2, uniformly carrying out thermalization treatment on the aluminum alloy ingot obtained in the step S1, cutting off the head and the tail, and milling the surface to obtain a pretreated alloy ingot;
s3, preheating the pretreated alloy ingot obtained in the step S2, and then hot-rolling the alloy ingot to a hot-rolled plate with a certain thickness, wherein the final hot-rolling temperature is more than or equal to 300 ℃;
s4, annealing the hot rolled plate obtained by the hot rolling in the step S3 at the temperature of 320 ℃, and preserving heat for 3 hours;
s5, cold rolling the plate processed in the step S4 to an aluminum alloy plate with the finished thickness;
s6, preserving heat of the aluminum alloy sheet obtained in the step S5 at the temperature of 150 ℃ for 3 hours for stabilizing treatment;
and S7, transversely shearing and straightening the aluminum alloy sheet after the stabilizing treatment to obtain the aluminum alloy plate.
In the step S3, the hot-rolled sheet after hot-rolling forming has a reduction ratio of 14 to 17% to an aluminum alloy sheet
The experimental process comprises the following steps:
preparing aluminum alloy plates according to the examples 1 to 3 respectively, and measuring the performance of the aluminum alloy plates; the specific measurement results are shown in the following table:
according to the experimental results of the properties of the aluminum alloy sheets prepared in the foregoing examples 1-3, it can be seen that the aluminum alloy sheets prepared by the material and the processing method for preparing the aluminum alloy provided by the present invention have satisfactory tensile strength and yield strength, and have good elongation, and meanwhile, the aluminum alloy sheets prepared by the present invention have good spalling corrosion resistance and intergranular corrosion resistance on the premise of reducing one cold rolling process.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (6)

1. A5083 aluminum alloy plate for ships is characterized by comprising the following components in percentage by weight: less than or equal to 0.2 percent of Si, less than or equal to 0.35 percent of Fe, less than or equal to 0.05 percent of Cu, 0.60 to 0.80 percent of Mn, 4.4 to 4.7 percent of Mg, 0.1 to 0.18 percent of Cr, less than or equal to 0.1 percent of Zn, 0.015 to 0.025 percent of Ti, Al and other inevitable elements, wherein the total content of the other inevitable elements is less than or equal to 0.05 percent and less than or equal to 0.15 percent.
2. The marine 5083 aluminum alloy plate of claim 1, comprising the following components in percentage by weight: 0.1% of Si, less than or equal to 0.35% of Fe, less than or equal to 0.05% of Cu, 0.60% of Mn, 4.5% of Mg, 0.15% of Cr, less than or equal to 0.1% of Zn, 0.02% of Ti, Al and other unavoidable elements, less than or equal to 0.05% of the other unavoidable elements, and less than or equal to 0.15% in total.
3. The production process of the marine 5083 aluminum alloy plate of any of claims 1-2, comprising the following preparation steps:
s1, weighing the above element ingredients according to the weight percentage, putting the elements into a smelting furnace, smelting at the temperature of 700 and 750 ℃, refining, degassing, slagging off and filtering, and then casting aluminum liquid into aluminum alloy ingots;
s2, uniformly carrying out thermalization treatment on the aluminum alloy ingot obtained in the step S1, cutting off the head and the tail, and milling the surface to obtain a pretreated alloy ingot;
s3, preheating the pretreated alloy ingot obtained in the step S2, and then hot-rolling the alloy ingot to a hot-rolled plate with a certain thickness, wherein the final hot-rolling temperature is more than or equal to 300 ℃;
s4, annealing the hot rolled plate obtained by the hot rolling in the step S3 at the temperature of 320-400 ℃, and preserving heat for 3-5 hours;
s5, cold rolling the plate processed in the step S4 to an aluminum alloy plate with the finished thickness;
s6, preserving the heat of the aluminum alloy sheet obtained in the step S5 at the temperature of 120-150 ℃ for 3-5h for stabilization treatment;
and S7, transversely shearing and straightening the aluminum alloy sheet after the stabilizing treatment to obtain the aluminum alloy plate.
4. The production process of the marine 5083 aluminum alloy plate as set forth in claim 3, wherein: in step S3, the annealing temperature of the hot-rolled sheet is 350 ℃.
5. The production process of the marine 5083 aluminum alloy plate as set forth in claim 3, wherein: in step S6, the aluminum alloy sheet is stabilized by holding at 130 ℃ for 4 h.
6. The production process of the marine 5083 aluminum alloy plate as set forth in claim 3, wherein: in the step S3, the processing rate of the hot-rolled sheet subjected to hot rolling forming to an aluminum alloy sheet is 14% to 17%.
CN201911073911.6A 2019-11-05 2019-11-05 Marine 5083 aluminum alloy plate and preparation process thereof Active CN110629083B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112430759A (en) * 2020-11-23 2021-03-02 天津忠旺铝业有限公司 Preparation process of marine 5083-H116 aluminum alloy
CN112626398A (en) * 2020-11-30 2021-04-09 河南明泰科技发展有限公司 Novel 5070 aluminum alloy for cosmetic mirror surface and preparation method and application thereof

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US20100119407A1 (en) * 2008-11-07 2010-05-13 Alcoa Inc. Corrosion resistant aluminum alloys having high amounts of magnesium and methods of making the same
CN102876939A (en) * 2012-10-29 2013-01-16 东北轻合金有限责任公司 Manufacturing method of aluminum magnesium alloy
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CN107475648A (en) * 2017-08-16 2017-12-15 天津忠旺铝业有限公司 A kind of stabilization process of 5383 aluminium alloy
CN107739928A (en) * 2017-10-30 2018-02-27 辽宁忠旺集团有限公司 A kind of processing technology of 5083 aluminium alloy extrusions peculiar to vessel
CN109355535A (en) * 2018-11-29 2019-02-19 天津忠旺铝业有限公司 A kind of preparation method of 5083 aluminum alloy plate materials
CN109355604A (en) * 2018-11-27 2019-02-19 广西柳州银海铝业股份有限公司 5083H321 aluminium alloy thick plate preparation method

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Publication number Priority date Publication date Assignee Title
US20040094245A1 (en) * 2002-11-15 2004-05-20 Zhong Li Aluminum automotive frame members
US20100119407A1 (en) * 2008-11-07 2010-05-13 Alcoa Inc. Corrosion resistant aluminum alloys having high amounts of magnesium and methods of making the same
CN102876939A (en) * 2012-10-29 2013-01-16 东北轻合金有限责任公司 Manufacturing method of aluminum magnesium alloy
CN104404413A (en) * 2014-12-15 2015-03-11 西南铝业(集团)有限责任公司 Processing technology for 5083 aluminum alloy plate for ship
CN104475477A (en) * 2014-12-15 2015-04-01 西南铝业(集团)有限责任公司 Processing technology for marine 5083 aluminum alloy sheet
CN107475648A (en) * 2017-08-16 2017-12-15 天津忠旺铝业有限公司 A kind of stabilization process of 5383 aluminium alloy
CN107739928A (en) * 2017-10-30 2018-02-27 辽宁忠旺集团有限公司 A kind of processing technology of 5083 aluminium alloy extrusions peculiar to vessel
CN109355604A (en) * 2018-11-27 2019-02-19 广西柳州银海铝业股份有限公司 5083H321 aluminium alloy thick plate preparation method
CN109355535A (en) * 2018-11-29 2019-02-19 天津忠旺铝业有限公司 A kind of preparation method of 5083 aluminum alloy plate materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112430759A (en) * 2020-11-23 2021-03-02 天津忠旺铝业有限公司 Preparation process of marine 5083-H116 aluminum alloy
CN112626398A (en) * 2020-11-30 2021-04-09 河南明泰科技发展有限公司 Novel 5070 aluminum alloy for cosmetic mirror surface and preparation method and application thereof

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